JP2016030616A - Joint mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joint mechanism which prevents dust and bacteria from entering thereinto and maintains the sanitary condition.SOLUTION: A joint mechanism includes: a cylindrical body 21 having a take-in opening part 21b for taking a fluid from a fluid container 30, in which the fluid is stored, into a liquid feeder; and a shutter body 22 which closes the take-in opening part 21b so that the take-in opening part 21b can open. The shutter body 22 includes: a shutter part 25 which slides on an outer periphery of the cylindrical body 21 to open and close the take-in opening part 21b; and a biasing part 26 which biases the shutter part 25 so that the shutter part 25 covers the take-in opening part 21b. The fluid container 30 is attached to the joint mechanism and the joint mechanism supplies the fluid from the fluid container 30 to the fluid feeder.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a joint mechanism of a liquid supply apparatus to which a fluid container is attached.

  In a liquid supply device such as a water server, a liquid container for storing a liquid such as water or mineral water is often mounted on, for example, an upper portion of the server body. Furthermore, in this type of liquid supply apparatus, a joint member connected to the liquid container is provided on the bottom surface of the deep concave mounting portion (see Patent Documents 1 and 2). These joint members, for example, have a pin shape as a whole, and an intake opening for taking in liquid from the liquid container is formed around the joint member. And when a liquid container is mounted | worn with a mounting part, a liquid supply apparatus can take in the liquid of a liquid container from a taking-in opening part by a joint member being stabbed and connected with the opening part of a liquid container.

  However, the conventional liquid supply apparatus has a structure in which the joint member is exposed to the outside when the liquid container is not attached. Therefore, in the conventional liquid supply apparatus, when the liquid container is not attached, there is a possibility that dust, germs, and the like may enter the liquid supply apparatus from the intake opening of the joint member. Further, in the conventional liquid supply device, when the liquid container is mounted on the mounting portion, dust or germs attached to the outer surface of the joint member when the liquid container is not mounted are contained in the liquid container and / or the liquid supply device. There is a risk of intrusion.

JP 2011-102146 A JP 2010-269829 A

  The present invention has been made in view of the above problems, and is a joint that can prevent dust, germs, and the like from entering the fluid container and / or the liquid supply apparatus, and can maintain a sanitary condition. The purpose is to provide a mechanism.

  The joint mechanism according to the present invention is a joint mechanism of a liquid supply device that can be equipped with a fluid container for storing a fluid and supplies the fluid from the fluid container to the liquid supply device. A cylindrical body having an intake opening for taking in the fluid, and a shutter body for closing the intake opening so as to be openable, and the shutter body slides on an outer periphery of the cylindrical body. A shutter portion that opens or closes the intake opening; and an urging portion that urges the shutter portion to cover the intake opening.

  Furthermore, the shutter part and the biasing part may be configured to be formed in an integral cylindrical shape.

  Further, the shutter portion has a cylindrical shape, the urging portion has a cylindrical shape whose diameter is larger than that of the shutter portion, and the shutter portion and the urging portion are integrally formed. Also good.

  Further, when the fluid container is attached to the joint mechanism, the shutter portion exposes the intake opening by deformation of the biasing portion, and when the fluid container is removed from the joint mechanism, The urging portion may be restored, and the cylindrical body may be returned to a fixed position by the urging force so as to cover the intake opening.

  Further, the shutter portion may be formed with a sealing portion on any one of an outer peripheral surface, an inner peripheral surface, and a front end surface.

  Furthermore, the fluid container has a plug mechanism into which the joint mechanism is inserted, and the plug mechanism has a mouth portion and a plug body attached to the mouth portion. An outer diameter portion having a large diameter, and an inner diameter portion located inside the outer diameter portion, the inner diameter portion extending from the outer diameter portion and fixing the position of the inner diameter portion A support portion may be provided, and between the outer diameter portion and the inner diameter portion, at least one communication portion communicating with the inside and the outside of the mouth portion may be provided.

  In the joint mechanism of the present invention, when the fluid container is not attached to the joint mechanism, the intake opening of the cylindrical body is covered with the shutter portion biased by the biasing portion. Furthermore, in the joint mechanism of the present invention, when the fluid container is attached, the operation of exposing the intake opening is performed after the shutter portion is connected to the fluid container or in the connection process. Furthermore, when the fluid container is removed, the joint mechanism of the present invention performs an operation of covering the intake opening with the shutter portion being connected to the fluid container. Therefore, in the joint mechanism of the present invention, the intake opening is shut off from the outside when the fluid container is not mounted, attached, or removed, and dust, bacteria, etc. Can be prevented. Therefore, the joint mechanism of the present invention can prevent dust, germs, and the like from entering the inside of the liquid supply apparatus and / or the inside of the fluid container from the intake opening, and can maintain a sanitary state.

It is the perspective view which showed the joint mechanism. It is front sectional drawing which showed the joint mechanism. It is front sectional drawing which showed the stopper mechanism of the fluid container before attaching to a joint mechanism. It is front sectional drawing which showed the stopper mechanism of the fluid container at the time of attaching to a joint mechanism. It is front sectional drawing which showed the opening | mouth part and the plug. It is the perspective view which showed the opening | mouth part and the plug. It is the perspective view which showed the cylinder of the joint mechanism. It is the perspective view which showed the shutter body of the joint mechanism. It is front sectional drawing which showed the stopper mechanism and joint mechanism of the fluid container before a fluid container is attached to a joint mechanism. It is front sectional drawing which showed the stopper mechanism and joint mechanism of the fluid container immediately after the fluid container was inserted in the joint mechanism. It is front sectional drawing which showed the stopper mechanism and joint mechanism of the fluid container when a fluid container was attached to the joint mechanism.

  Hereinafter, a joint mechanism to which the present invention is applied will be described in detail with reference to the drawings. In addition, this invention is not limited to the following examples, It can change arbitrarily in the range which does not deviate from the summary of this invention.

  As shown in FIGS. 1 and 2, the joint mechanism 20 to which the present invention is applied is attached to the upper surface or the like of the main body 10 of the liquid supply apparatus 1 and is equipped with a fluid container 30 for storing fluid. The liquid supply apparatus 1 is, for example, a water server or the like, and as shown in FIGS. 1 and 2, a main body 10 and a fluid container 30 that is provided on the upper surface of the main body 10 and stores a fluid such as water or mineral water are mounted. The joint mechanism 20 is provided.

<Liquid supply device body>
As shown in FIGS. 1 and 2, the main body 10 has a concave portion 11 having a rectangular concave shape in plan view, for example. Further, a protrusion 12 projecting toward one end side in the height direction and a lower portion 13 that is one step lower than the protrusion 12 are formed around the protrusion 12 on the bottom surface of the recess 11. Yes. Further, a joint mechanism 20 is held in the protruding portion 12 in a penetrating manner.

  Therefore, the main body 10 accumulates water such as water or mineral water spilled on the upper surface in the lower portion 13 that is one step lower than the protrusion 12, so that water leakage occurs between the joint mechanism 20 and the protrusion 12. It can be prevented. Furthermore, since the overflowing fluid accumulates in the low part 13, the main body 10 can easily wipe off the liquid and can be cleaned more easily than in the past. Therefore, the liquid supply apparatus 1 can maintain a sanitary state.

  In addition, the main body 10 is inclined on the upper surface of the protrusion 12 so as to gradually decrease from the center toward the low part 13 so that the fluid overflowing the upper surface of the protrusion 12 flows reliably through the low part 13. May be provided. Further, the main body 10 is inclined so that the fluid overflowing the low portion 13 is collected in the corner portion and gradually decreases from the protruding portion 12 side toward the side wall portion of the concave portion 11. You may make it provide.

  The main body 10 includes a cooling tank (not shown) for cooling the fluid and a heating tank (not shown) for warming the fluid. The cooling tank is connected to the joint mechanism 20 via, for example, a pipe, and the fluid flowing in from the fluid container 30 attached to the joint mechanism 20 is predetermined by a cooling device such as a heat exchanger built in the main body 10. Cool down to a temperature of. The heating tank is connected to the joint mechanism 20 or the cooling tank via, for example, a pipe, and the fluid introduced from the fluid container 30 or the cooling tank attached to the joint mechanism 20 is used as a heater built in the main body 10 or the like. Warm up to a predetermined temperature with a heating device.

  Further, on one side surface such as the front surface of the main body 10, a first supply port (not shown) for supplying the fluid cooled in the cooling tank to the outside and a second supply for supplying the fluid heated in the heating tank to the outside A mouth (not shown) and first and second discharge operation units (not shown) such as a lever, a button, and a touch panel are installed. The first supply port is connected to the cooling tank via a pipe, for example, and when the first discharge operation unit is operated by a user or the like, the fluid cooled in the cooling tank is supplied to the outside. The second supply port is connected to the heating tank via, for example, a pipe, and when the second discharge operation unit is operated by a user or the like, supplies the fluid heated in the heating tank to the outside. The supply port is divided into a first supply port for supplying a cooled fluid and a second supply port for supplying a warmed fluid, but the cooled fluid and the warmed fluid at one supply port. It is also possible to use a structure in which these are switched and supplied.

<Fluid container>
As shown in FIGS. 3 to 6, the fluid container 30 is a container for storing a fluid such as water or mineral water. Furthermore, the fluid container 30 is a flexible container having flexibility and a variable capacity, and is formed of a synthetic resin material such as polypropylene, polyethylene, or polyamide by blow molding or the like. Moreover, the container made into a bag using these synthetic resin sheets may be sufficient. Further, when a synthetic resin sheet is used, this sheet may be a laminated sheet of a plurality of the same or different kinds of sheets, for example, a laminated sheet of polyethylene, polypropylene, polyamide, polyethylene terephthalate, or the like. At this time, when the fluid is water, it is desirable to select a material that does not easily generate odors on the surface in contact with water.

  Moreover, as shown in FIGS. 3-6, the fluid container 30 has the stopper mechanism 40 used as a water injection port (mouth part). The fluid container 30 is attached to the main body 10 by inserting the joint mechanism 20 into the stopper mechanism 40.

  The fluid container 30 includes fluids such as water, mineral water, etc., soft drinks such as juice, coffee and tea, drinking water, alcoholic beverages, soy sauce, mirin, dressing, miso soup and other miso soup. It can contain food and drink including fluid dishes such as corn soup, fluids such as industrial products, viscous fluids, gel-like bodies, slurry-like bodies and the like.

  Further, the fluid container 30 is not limited to a flexible container having a variable capacity. For example, a hard container having a variable capacity formed by molding a synthetic resin material such as polyethylene terephthalate (PET) by blow molding or the like. It may be.

  Furthermore, the fluid container 30 may be stored in a storage box made of paper such as cardboard, synthetic resin, or metal, and may have a so-called BIB (back-in-box) type structure. At this time, the fluid container 30 is placed in the stopper mechanism 40 in a state in which the stopper mechanism 40 protrudes to the outside from a through-hole formed in one end surface of the storage box and is stored in the storage box. The joint mechanism 20 is inserted and attached to the main body 10. Furthermore, the storage box may be provided with a gripping part that is gripped by the user when the fluid container 30 is attached to or detached from the joint mechanism 20.

<Plug mechanism>
As shown in FIGS. 3 and 4, the stopper mechanism 40 of the fluid container 30 is provided, for example, on a side surface (one main surface) of the fluid container 30. Specifically, the plug mechanism 40 includes a mouth portion 41 provided on a side surface portion of the fluid container 30 and a plug body 42 that is detachably attached to the mouth portion 41.

  As shown in FIG. 5, the mouth portion 41 has a cylindrical outer diameter portion 50 having a relatively large diameter, and a cylindrical inner diameter portion positioned inside the outer diameter portion 50 and having a smaller diameter than the outer diameter portion 50. 51. The inner diameter portion 51 has an upper surface and a lower surface that are open, and has a communication port 52 that communicates with the inside and the outside of the mouth portion 41. Further, the inner diameter portion 51 is shorter in the axial direction than the outer diameter portion 50 and is disposed in the outer diameter portion 50.

  As shown in FIGS. 5 and 6, the inner diameter portion 51 has one or more support portions 53 that extend from the outer diameter portion 50 and fix the position of the inner diameter portion 51. Specifically, the support portion 53 includes a plurality of support portions 53 at regular intervals between the outer diameter portion 50 and the inner diameter portion 51 between the outer diameter portion 50 and the inner diameter portion 51 and centering on the mouth axis of the mouth portion 41. Is formed. Further, the support portion 53 is formed so as to form a fin shape that is long in the mouth axis direction of the mouth portion 41 and thin in the direction perpendicular to the mouth axis. Accordingly, since the support portion 53 is thin in the direction perpendicular to the mouth axis, the support portion 53 is thin in plan view, but is long in the mouth axis direction, so that the inner diameter portion 51 can be sufficiently fixed. doing.

  Further, as shown in FIGS. 5 and 6, between the outer diameter portion 50 and the inner diameter portion 51, there is at least one communication portion 54 that communicates with the inside and the outside of the mouth portion 41. . Specifically, the communication portion 54 is provided between the plurality of support portions 53 and 53 that are provided in a radial shape and have a fin shape. And since the communication part 54 is formed so that the support part 53 may form a thin fin shape in the direction perpendicular to the mouth axis, the communication area (opening area) can be provided large.

  Further, as shown in FIG. 5, a concave annular mouth sealing portion 55 is formed on the inner peripheral surface of the inner diameter portion 51 on the proximal end side. As shown in FIG. 3, the mouth portion sealing portion 55 is fitted to a convex annular plug body sealing portion 62 formed on the outer peripheral surface of the plug portion 61 of the plug body 42. Thus, the mouth sealing portion 55 prevents leakage from occurring between the inner peripheral surface of the inner diameter portion 51 and the outer peripheral surface of the plug portion 61. Further, the mouth sealing portion 55 prevents the plug body 42 from being displaced in the inner diameter portion 51 by fitting the plug body sealing portion 62 of the plug body 42. The mouth sealing portion 55 is not limited to be formed in a concave ring shape and the plug sealing portion 62 is formed in a convex ring shape. For example, the mouth sealing portion 55 is formed in a convex ring shape. The plug sealing portion 62 may be formed in a concave ring shape.

  Further, as shown in FIG. 5, a stopper 56 composed of a step is formed on the inner peripheral surface on the proximal end side of the inner diameter portion 51. As shown in FIG. 4, the stopper 56 is engaged with the protruding portion 63 of the plug body 42, so that the mouth sealing portion 55 of the mouth portion 41 and the plug sealing portion 62 of the plug body 42 are connected. When the fitting state is released and the plug body 42 is moved to the inside of the fluid container 30, the plug body 42 is prevented from entering the inside of the fluid container 30 and the plug body 42 is positioned.

  Further, as shown in FIG. 5, a mouth portion mounting portion 57 to be fitted to the plug body mounting portion 67 of the plug body 42 is formed on the outer peripheral surface on the distal end side of the outer diameter portion 50. The mouth mounting portion 57 has a housing recess 57a in which the plug body mounting portion 67 of the plug body 42 is disposed, and a base end side formed on the distal inner peripheral surface side of the outer diameter portion 50 by the housing recess 57a. A thin protruding piece 57b, a bulging portion 57c formed to protrude from the tip of the protruding piece 57b, and an outer peripheral surface on the proximal end side of the protruding piece 57b, are formed on the plug mounting portion 67 of the plug 42. It has the fitting recessed part 57d by which the formed 1st fitting part 67a is fitted.

  As shown in FIG. 3, the plug portion 61 of the plug body 42 is accommodated in the inner diameter portion 51, and the protruding piece 57 b of the mouth portion 41 is a gap between the substantially U-shaped plug body mounting portion 67 of the plug body 42. The bulging portion 57c is formed on the plug body mounting portion 67 of the plug body 42 from the inner peripheral surface side in a state where the protruding piece 57b of the mouth portion 41 is sandwiched by the plug body mounting portion 67 of the plug body 42. The fitting recess 57d is fitted by the first fitting portion 67a formed on the plug body mounting portion 67 of the plug body 42 from the outer peripheral surface side while being fitted by the second fitting portion 67b. The plug body 42 is detachably attached to the mouth section 41 while ensuring the sealing between the mouth section 41 and the plug body 42.

  As shown in FIG. 5, a joining piece 58 having a flange shape welded to the peripheral edge portion 31 a of the opening 31 formed on the side surface portion of the fluid container 30 is formed on the outer peripheral surface of the outer diameter portion 50. Is formed. The joining piece 58 is extended outward on the entire circumference of the outer peripheral surface of the outer diameter portion 50, and is formed in a substantially circular shape or the like in plan view. That is, in the mouth portion 41, the joining piece 58 and the peripheral portion 31 a of the opening portion 31 are welded in a state where the joining piece 58 and the outer peripheral surface or inner peripheral surface of the peripheral portion 31 a of the opening portion 31 are in surface contact. Thus, it is attached to the side surface portion of the fluid container 30. Note that the joining piece 58 is not limited to be formed in a substantially circular shape or the like in plan view, but may be a rectangular shape or the like as long as the joining piece 58 and the peripheral edge portion 31a of the opening 31 can be welded. Any other shape may be used.

  As shown in FIG. 3, the plug body 42 is inserted into the inner diameter portion 51. As shown in FIGS. 5 and 6, the plug body 42 is a separate member from the mouth portion 41, covers the outer diameter portion 50 of the mouth portion 41, and seals the connection between the communication portion 54 and the outside of the fluid container 30. It has the sealing part 60 and the plug part 61 which plugs up the internal diameter part 51 of the opening | mouth part 41 so that opening is possible in succession to this sealing part 60. FIG.

  As shown in FIG. 5, the plug portion 61 is formed in a bottomed cylindrical shape, and is formed so that the outer diameter is substantially the same as the inner diameter of the inner peripheral surface on the tip side of the stopper 56 of the inner diameter portion 51. The inner diameter portion 51 is fitted in the inner diameter portion 51 so as to be slidable in the direction of the mouth axis of the inner diameter portion 51.

  Further, as shown in FIG. 5, a convex annular plug sealing portion 62 projecting outward is formed on the outer peripheral surface of the base end side of the plug portion 61. As shown in FIG. 3, the plug sealing portion 62 is fitted into the mouth sealing portion 55. Thereby, the plug body sealing portion 62 prevents leakage from occurring between the inner peripheral surface of the inner diameter portion 51 and the outer peripheral surface of the plug portion 61. Further, the plug body 42 is prevented from being displaced in the inside of the inner diameter portion 51 by fitting the plug body sealing portion 62 into the mouth portion sealing portion 55.

  Further, as shown in FIG. 5, a protruding portion 63 projecting outward is continuously or intermittently formed on the outer peripheral surface of the distal end side of the plug portion 61. As shown in FIG. 4, the protruding portion 63 is released from the fitting state between the plug sealing portion 62 and the mouth sealing portion 55 when the plug portion 61 is pushed toward the fluid container 30 by the joint mechanism 20. When the plug portion 61 moves inside the inner diameter portion 51 to the fluid container 30 side, it is locked by the stopper 56 of the mouth portion 41 to regulate the pushing amount of the plug body 42, and the plug body 42 becomes the fluid container. Do not go too far into 30. Further, the outer diameter of the protrusion 63 is approximately the same as or slightly the same as the inner diameter of the stopper 56 of the inner diameter portion 51 so that leakage does not occur from the gap between the inner peripheral surface of the inner diameter portion 51 and the outer peripheral surface of the plug portion 61. It is provided so as to be in pressure contact with the inner peripheral surface of the stopper 56 of the inner diameter portion 51.

  As shown in FIGS. 5 and 6, a plurality of communication holes 64 for communicating the inside of the fluid container 30 and the joint mechanism 20 are formed in the side surface portion on the proximal end side of the plug portion 61. A plurality of the communication holes 64 are formed at equal intervals over the entire circumference of the side surface portion of the plug portion 61. Here, two communication holes 64 are formed at equal intervals over the entire circumference of the side surface portion of the plug portion 61. Note that one or three or more communication holes 64 may be formed, or may be formed at unequal intervals. Further, the communication hole 64 is formed between the plug sealing part 62 and the protrusion 63 in the mouth axis direction of the plug part 61. As shown in FIG. 4, the communication hole 64 has a fitting state between the plug sealing portion 62 and the mouth sealing portion 55 when the plug portion 61 is pushed toward the fluid container 30 by the joint mechanism 20. The plug portion 61 moves to the fluid container 30 side in the inner diameter portion 51 from the closing position where the inner diameter portion 51 is released, and the plug portion 61 opens the inner diameter portion 51 inside the fluid container 30. When entering the position, the fluid inside the fluid container 30 is taken in and supplied to the joint mechanism 20.

  Further, as shown in FIG. 5, a concave sliding fitting portion 65 is formed on the proximal end surface of the plug portion 61 at a substantially central portion toward the fluid container 30 side. As shown in FIGS. 10 and 11, the sliding fitting portion 65 is a convex sliding fitting portion formed on the front end surface of the joint mechanism 20 when the fluid container 30 is attached to the joint mechanism 20. 24 is fitted. Thereby, when the fluid container 30 is removed from the joint mechanism 20, the plug body 42 does not move together with the fluid container 30 (mouth portion 41), and the fluid container 30 (mouth portion 41) moves to the distal end side of the joint mechanism 20. The plug portion 61 is inserted into the inner diameter portion 51 as it moves. Then, when the plug body sealing portion 62 is fitted to the mouth portion sealing portion 55 of the mouth portion 41, the plug body 42 is formed between the sliding fitting portion 65 and the sliding fitting portion 24 of the joint mechanism 20. The fitting state is released and the fluid container 30 (port 41) moves together. That is, the fitting force between the plug sealing portion 62 and the mouth sealing portion 55 is set stronger than the fitting force between the sliding fitting portion 65 and the sliding fitting portion 24 of the joint mechanism 20. Further, the fluid container 30 is positioned on the joint mechanism 20 by the sliding fitting portion 65 and the sliding fitting portion 24 of the joint mechanism 20 being fitted.

  As shown in FIG. 5, a sealing portion 60 that seals the connection between the communicating portion 54 and the outside of the fluid container 30 is formed at the distal end portion of the stopper portion 61. The blocking portion 60 is formed to protrude outward from the tip portion of the plug portion 61. Specifically, the blocking portion 60 is formed by bending outward from the distal end portion of the plug portion 61 to the proximal end side thereof so as to be bent in a substantially U shape, and has a deformable portion 66 having flexibility and stretchability, and the deformable portion 66. It is formed by bending outwardly from the distal end portion to the distal end side in a substantially U shape and is configured by a plug body mounting portion 67 that sandwiches the protruding piece 57b of the mouth portion 41, and is formed in a substantially S shape. . Since the deforming portion 66 is formed in a substantially U-shaped curve and has flexibility and stretchability, the plug portion 61 has moved to the fluid container 30 side in the inner diameter portion 51 as shown in FIG. In some cases, it can be deformed following this. Therefore, even if the plug portion 61 is in a state where the plug body mounting portion 67 is attached to the projecting piece 57b, the deformation portion 66 follows and deforms so that the inside of the inner diameter portion 51 of the mouth portion 41 is in the mouth axis direction. Can slide. The plug mounting portion 67 is preferably formed so that the outer diameter is substantially the same as the outer diameter of the outer diameter portion 50 of the mouth portion 41 when the protruding piece 57b of the mouth portion 41 is sandwiched.

  Further, as shown in FIG. 5, on the inner peripheral surface of the plug mounting portion 67, the first portion fitted into the fitting concave portion 57 d of the mouth portion 41 at a position facing the fitting concave portion 57 d of the mouth portion 41. A fitting portion 67a is formed. The first fitting portion 67a is formed in, for example, a convex ring projecting inward. Further, a second fitting portion 67b fitted to the bulging portion 57c of the mouth portion 41 is provided on the inner circumferential surface of the plug mounting portion 67 at a position facing the inner circumferential surface of the protruding piece 57b of the mouth portion 41. Is formed. The second fitting portion 67b is formed in, for example, a convex ring projecting outward.

  As shown in FIG. 3, the plug portion 61 is accommodated in the inner diameter portion 51, and the protruding piece 57 b is inserted into the gap of the substantially U-shaped plug body mounting portion 67, so that the plug body mounting portion 67 is the protruding piece. In a state where 57b is held, the bulging portion 57c is fitted from the inner peripheral surface side by the second fitting portion 67b while the fitting concave portion 57d is fitted from the outer peripheral surface side by the first fitting portion 67a. Thus, the plug 42 is fitted to the mouth 41 while ensuring the sealing between the mouth 41 and the plug 42.

  As shown in FIG. 3, the stopper 42 may have a protective film 68 attached to the distal end surface of the stopper mounting portion 67. The protective film 68 protects the mouth portion 41 and the plug body 42 from dust, germs, and the like, and maintains a sanitary state. Furthermore, such a protective film 68 is torn by the joint mechanism 20 when, for example, the fluid container 30 is inserted into the joint mechanism 20. Therefore, by confirming that the protective film 68 has not been peeled off or torn, the user can easily grasp that the hand has not been added since the fluid container 30 is sealed. I can do it. The protective film 68 is formed of a material having orientation so as not to interfere with the plug body 42 after being cut. When the protective film 68 is cut, the protective film 68 is folded inward along the orientation direction and retracted from the plug body 42. The broken protective film 68 can be configured not to be sandwiched between the plug body 42 and the joint mechanism 20. Further, the protective film 68 is attached in a state where a tension is applied, and when it is torn, the protective film 68 breaks down by, for example, escaping to the edge side of the plug body mounting portion 67 and retracting from the plug body 42. It is preferable that the protective film 68 is configured not to be sandwiched between the plug body 42 and the joint mechanism 20. Moreover, in order to make it easy to fracture | rupture, you may comprise by providing easy cut parts, such as a half cut. Of course, in addition to the orientation film, a non-orientation film may be used, or a plurality of functional films may be laminated, and the broken protective film 68 is sandwiched between the plug body 42 and the joint mechanism 20. If it is comprised so that it may not be carried out, the structure of the protective film 68 will not be specifically limited.

<Joint mechanism>
As shown in FIGS. 7 to 9, the joint mechanism 20 includes a tubular body 21 in which a passage 21 a is formed and a side surface portion is formed with an intake opening 21 b communicating with the passage 21 a. The shutter body 22 is provided so as to be slidable in the axial direction of the body 21 and covers and exposes the intake opening 21b.

  As shown in FIGS. 7 and 9, the cylindrical body 21 is formed in a cylindrical shape, and a passage 21 a is formed therein. Further, the cylindrical body 21 is erected on the bottom surface portion (projecting portion 12) of the concave portion 11 on the top surface of the main body 10 of the liquid supply apparatus 1. For example, as shown in FIG. 9, the cylindrical body 21 is attached to the back surface of the concave portion 11 after being inserted or fitted into the cylindrical main body mounting portion 14 formed on the bottom surface portion (projecting portion 12) of the concave portion 11. It is detachably attached to the main body 10 by being screwed into the screw hole 15a of the pipe member 15 that is or is arranged. The cylindrical body 21 may be detachably attached to the main body 10 by being screwed into a screw hole formed on the inner peripheral surface of the main body attaching portion 14.

  Further, as shown in FIGS. 7 and 9, a flange portion 23 that protrudes outward is formed on the distal end side of the side surface portion of the cylindrical body 21. The flange portion 23 is formed so that the outer diameter is substantially the same as the inner diameter of the plug portion 61 of the plug body 42. As shown in FIG. 11, the flange portion 23 is pressed against the inner peripheral surface of the plug portion 61 when the joint mechanism 20 is inserted into the plug portion 61 of the plug body 42. Further, as shown in FIGS. 7 and 9, a plurality of intake openings 21 b are formed on the distal end side of the side surface portion of the cylindrical body 21 on the proximal end side with respect to the flange portion 23. For example, two intake openings 21 b are formed at equal intervals on the side surface of the cylindrical body 21. Note that one or three or more intake openings 21b may be formed on the side surface of the cylindrical body 21, or may be formed at non-uniform intervals.

  Further, as shown in FIG. 7 and FIG. 9, a convex sliding fit that is fitted to the sliding fitting portion 65 of the base end surface of the plug portion 61 of the plug body 42 is provided on the distal end surface of the cylindrical body 21. A joint portion 24 is formed. As shown in FIGS. 10 and 11, the sliding fitting portion 24 is fitted to the sliding fitting portion 65 of the plug portion 61 of the plug body 42 when the fluid container 30 is attached to the joint mechanism 20. The Thereby, when the fluid container 30 is removed from the joint mechanism 20, the plug body 42 does not move together with the fluid container 30 (mouth portion 41), and the fluid container 30 (mouth portion 41) moves to the distal end side of the joint mechanism 20. The plug portion 61 is inserted into the inner diameter portion 51 as it moves. When the plug body sealing portion 62 is fitted to the mouth portion sealing portion 55, the plug body 42 has a fitting state between the sliding fitting portion 65 and the sliding fitting portion 24 of the joint mechanism 20. It is released and moves together with the fluid container 30 (mouth 41). That is, the fitting force between the plug sealing portion 62 of the plug 42 and the mouth sealing portion 55 is the fitting force between the sliding fitting portion 65 of the plug 42 and the sliding fitting portion 24 of the joint mechanism 20. Is more strongly established. Further, the fluid container 30 is positioned on the joint mechanism 20 by fitting the sliding fitting portion 65 of the plug 42 and the sliding fitting portion 24 of the joint mechanism 20.

  When the protective film 68 is attached to the distal end surface of the plug body mounting portion 67 of the plug body 42, a sharpened portion with a sharp tip may be formed on the distal end surface of the cylindrical body 21. . Thereby, when attaching the fluid container 30 to the joint mechanism 20, since the protective film 68 can be torn by this sharpened part, the process of peeling off the protective film 68 from the plug body 42 can be skipped.

  As shown in FIGS. 8 and 9, the shutter body 22 includes a cylindrical shutter portion 25 and a cylindrical urging portion 26 formed integrally with the shutter portion 25.

  As shown in FIGS. 8 and 9, the shutter portion 25 is formed in a cylindrical shape, and is provided on the outer peripheral surface of the cylindrical body 21 so as to be slidable in the mouth axis direction of the cylindrical body 21. Further, the shutter portion 25 is formed so that the outer diameter is substantially the same as the inner diameter of the plug portion 61 of the plug body 42. As a result, the shutter portion 25 is press-fitted into the plug portion 61 of the plug body 42 without a gap, thereby preventing leakage from occurring between the shutter portion 25 and the plug body 42.

  As shown in FIG. 8, at least one convex annular sealing portion 27a is formed on the outer peripheral surface of the shutter portion 25 so as to protrude outward. As shown in FIG. 11, the sealing portion 27 a is pressed against the inner peripheral surface of the plug portion 61 when the shutter portion 25 is inserted into the plug portion 61. Thereby, the occurrence of leakage from the gap between the inner peripheral surface of the plug portion 61 and the outer peripheral surface of the shutter portion 25 is prevented.

  Furthermore, as shown in FIG. 8, at least one convex annular sealing portion 27b is formed on the inner peripheral surface of the shutter portion 25 so as to protrude inward. As shown in FIG. 11, the sealing portion 27 b is pressed against the outer peripheral surface of the cylindrical body 21 when the shutter portion 25 is inserted into the plug portion 61 of the plug body 42. Thereby, the occurrence of leakage from the gap between the outer peripheral surface of the cylindrical body 21 and the inner peripheral surface of the shutter portion 25 is prevented.

  Further, as shown in FIG. 8, at least one convex annular sealing portion 27 c is formed on the distal end surface of the shutter portion 25 so as to protrude toward the distal end side. As shown in FIG. 9, the sealing portion 27 c is configured such that the shutter portion 25 is urged toward the distal end side by the urging portion 26 so that the distal end surface of the shutter portion 25 contacts the proximal end surface of the flange portion 23 of the cylindrical body 21. When contacted, it is pressed against the base end face of the flange portion 23 of the cylindrical body 21. Thereby, the sealing property between the base end surface of the flange part 23 of the cylindrical body 21 and the front end surface of the shutter part 25 can be ensured more reliably.

  As shown in FIGS. 8 and 9, the urging portion 26 is configured to have a cylindrical shape whose diameter is larger than that of the shutter portion 25, and is formed integrally with the shutter portion 25. That is, the urging portion 26 is formed to protrude outward from the shutter portion 25. Thus, between the shutter portion 25 and the urging portion 26, when the shutter portion 25 is inserted into the plug portion 61 of the plug body 42, as shown in FIG. A stepped portion 28 to be locked is formed.

  Further, on the inner peripheral surface of the base end portion of the urging portion 26, a convex annular shape fitted to a concave annular main body fitting portion 14 a formed on the outer peripheral surface of the cylindrical main body attaching portion 14 of the concave portion 11. A shutter fitting portion 29 is formed. Therefore, the urging portion 26 is detachably attached to the main body 10 by inserting the main body attachment portion 14 therein and fitting the shutter fitting portion 29 with the main body fitting portion 14a of the main body attachment portion 14. .

  The urging portion 26 has elasticity, and when the fluid container 30 is not attached to the joint mechanism 20 or is detached from the joint mechanism 20, the front end surface of the shutter portion 25 is the flange portion 23 of the cylindrical body 21. The shutter portion 25 is urged toward the distal end portion (flange portion 23) so that the shutter portion 25 covers the intake opening 21 b of the cylindrical body 21. Furthermore, the urging portion 26 bends and deforms outward when pressed in the axial compressing direction, and is restored when the pressing is released. Therefore, as shown in FIGS. 10 and 11, the biasing portion 26 moves the fluid container 30 to the proximal end side of the joint mechanism 20 while the stepped portion 28 is locked to the distal end surface of the plug portion 61 of the plug body 42. Then, the shutter part 25 is moved to the proximal end side of the cylindrical body 21 by bending and deforming outward, and the intake opening 21b of the cylindrical body 21 is exposed. On the other hand, when the fluid container 30 is moved to the front end side of the joint mechanism 20 such as removing the fluid container 30 from the joint mechanism 20, the urging unit 26 is restored and the shutter unit 25 is made cylindrical by the urging force. It moves to the front end side of the body 21, and covers the taking-in opening part 21b of the cylindrical body 21, as shown in FIG.

<Mounting method>
Next, a method for attaching the fluid container 30 having the stopper mechanism 40 to the joint mechanism 20 will be described.

  First, the stopper mechanism 40 is aligned with the joint mechanism 20 as shown in FIG. 9, and the shutter part 25 of the shutter body 22 is connected to the step part 28 and the distal end surface of the stopper part 61 as shown in FIG. It is inserted into the stopper 61 until it is locked.

  Next, as shown in FIG. 10, the stopper mechanism 40 is configured such that the fluid container 30 is further weighted by the weight or the user while the stepped portion 28 of the shutter body 22 and the distal end surface of the stopper portion 61 of the stopper body 42 are locked. When the fluid container 30 is moved to the proximal end side of the joint mechanism 20 by the above operation, the urging portion 26 is bent outward and deformed as the fluid container 30 is moved to the proximal end side of the joint mechanism 20. Is moved to the base end side against the urging force of the urging portion 26 until it comes into contact with the distal end surface of the body mounting portion 14 of the recess 11, and the intake opening 21 b of the joint mechanism 20 is exposed in the plug portion 61. Let Furthermore, the plug mechanism 40 has the sliding fitting portion 65 and the sliding fitting portion 24 fitted therein.

  Next, since the step portion 28 of the shutter body 22 and the distal end surface of the stopper portion 61 are locked and the shutter portion 25 is in contact with the distal end surface of the main body attachment portion 14, the stopper mechanism 40 further includes fluid. When the container 30 is moved to the proximal end side of the joint mechanism 20, the fitting state between the plug sealing part 62 of the plug 42 and the mouth sealing part 55 of the mouth 41 is as shown in FIG. 11. The base end side of the plug portion 61 protrudes from the mouth portion 41 to the inside of the fluid container 30 and enters the inside until the protrusion 63 is locked to the stopper 56 by being released, and the communication hole 64 is in the fluid container. 30 is arranged inside. At this time, the deforming portion 66 is deformed following the movement of the plug portion 61. Thereby, the inside of the fluid container 30, the communication hole 64 of the stopper 42, the intake opening 21 b of the joint mechanism 20, and the passage 21 a communicate with each other. Then, the fluid in the fluid container 30 is supplied to the liquid supply apparatus 1 through the stopper mechanism 40 and the joint mechanism 20.

  As described above, the fluid container 30 having the stopper mechanism 40 can be attached to the joint mechanism 20.

  When the protective film 68 is attached to the distal end surface of the plug body mounting portion 67 of the plug body 42, the protective film 68 is first peeled off, and then the fluid container 30 is attached to the joint mechanism 20 as described above. You may make it attach. Alternatively, the fluid container 30 with the protective film 68 still attached is inserted into the joint mechanism 20, and the protective film 68 is cut by the sharpened portion formed at the distal end portion or the distal end surface of the joint mechanism 20. May be attached to the joint mechanism 20.

<Removal method>
Next, a method for removing the fluid container 30 having the stopper mechanism 40 from the joint mechanism 20 will be described.

  First, as shown in FIG. 11, the stopper mechanism 40 is moved from the state in which the inside of the fluid container 30 and the joint mechanism 20 communicate with each other to the tip side of the joint mechanism 20 by a user operation or the like. Since the sliding fitting portion 65 of the plug body 42 and the sliding fitting portion 24 of the joint mechanism 20 are fitted, the plug body 42 does not move together with the fluid container 30 (mouth portion 41). With the movement of the container 30 (mouth portion 41) on the distal end side, as shown in FIG. 10, the plug portion 61 is inserted into the inner diameter portion 51, and the plug body sealing portion 62, the mouth portion sealing portion 55, Are fitted. In the plug mechanism 40, the communication port 52 of the mouth portion 41 is closed by fitting the plug body sealing portion 62 of the plug body 42 and the mouth portion sealing portion 55 of the mouth portion 41. Therefore, the fluid container 30 can ensure hermeticity.

  Next, as shown in FIG. 10, the plug mechanism 40 is configured so that the fluid container 30 further remains in a state where the plug sealing part 62 of the plug 42 and the mouth sealing part 55 of the mouth 41 are fitted. When moved to the distal end side of the joint mechanism 20, the fitted state between the sliding fitting portion 65 of the plug 42 and the sliding fitting portion 24 of the joint mechanism 20 is released.

  Next, when the fluid container 30 is further moved to the distal end side of the joint mechanism 20, the stopper mechanism 40 restores the urging portion 26, and the shutter portion 25 is moved to the distal end side by the urging portion 26. 25, the intake opening 21 b of the cylindrical body 21 is covered in the plug portion 61 of the plug body 42.

  Next, when the fluid container 30 is further moved to the distal end side of the joint mechanism 20, the stopper mechanism 40 has a stepped portion 28 of the shutter body 22 and a distal end surface of the stopper portion 61 of the stopper body 42, as shown in FIG. 9. The locking state is released, and the shutter portion 25 is taken out from the plug portion 61 of the plug body 42.

  As described above, the fluid container 30 having the stopper mechanism 40 can be detached from the joint mechanism 20.

<Effect>
As described above, in the joint mechanism 20, when the fluid container 30 is not mounted, the shutter portion 25 is urged toward the distal end side of the cylindrical body 21 by the urging portion 26, and the intake opening 21 b of the cylindrical body 21. Covering. Furthermore, when the fluid container 30 is attached, the joint mechanism 20 performs an operation of exposing the intake opening 21b of the cylindrical body 21 in the plug body 42 after the shutter section 25 is inserted into the plug body 42. Is called. Further, when the fluid container 30 is removed, the joint mechanism 20 performs an operation of covering the intake opening 21b of the cylindrical body 21 in the plug body 42 in a state where the shutter section 25 is inserted into the plug body 42. Is called. Therefore, the joint mechanism 20 can prevent dust, germs, and the like from adhering to the intake opening 21b of the cylindrical body 21 when the fluid container 30 is not attached, attached, or removed. Therefore, the joint mechanism 20 can prevent dust, germs, and the like from entering the liquid supply device 1 from the intake opening 21b of the cylindrical body 21, and can maintain a sanitary state.

  Further, as described above, when the fluid container 30 is not attached, the joint mechanism 20 covers the intake opening 21b, so that the intake opening 21b (the base end surface of the flange 23 and the shutter) is covered. It is possible to prevent dust, germs, and the like from adhering to the front end surface of the portion 25, but there is a possibility that dust, germs, etc. may adhere to the front end surface of the flange portion 23 and the outer peripheral surface of the shutter portion 25.

  However, in the joint mechanism 20, when the fluid inside the fluid container 30 is supplied to the liquid supply device 1, the flange portion 23 is pressed against the inner peripheral surface of the plug portion 61 of the plug body 42. The space portion on the proximal end side with respect to the flange portion 23 in the plug portion 61 is hermetically sealed. That is, the joint mechanism 20 prevents the front end surface of the flange portion 23 from coming into contact with the fluid in the fluid container 30. Accordingly, the joint mechanism 20 is configured such that even if dust or germs adhere to the front end surface side of the flange portion 23, the dust or germs adhering to the front end surface of the flange portion 23 may be removed from the intake opening of the cylindrical body 21. Intrusion into the liquid supply apparatus 1 from 21b can be prevented, and a sanitary state can be maintained.

  In the joint mechanism 20, since the sealing portion 27 a of the shutter portion 25 is pressed against the inner peripheral surface of the plug portion 61 of the plug body 42, the outer peripheral surface of the shutter portion 25 is fluidized by the sealing portion 27 a. To prevent contact with other fluids. Therefore, the joint mechanism 20 is configured such that even if dust, germs, or the like adhere to the outer peripheral surface of the shutter portion 25, the dust, germs, or the like attached to the outer peripheral surface of the shutter portion 25 may have the intake opening 21 b of the cylindrical body 21. Can be prevented from entering the inside of the liquid supply apparatus 1 and the sanitary state can be maintained.

  Further, since the joint mechanism 20 is integrally formed with the shutter portion 25 and the biasing portion 26, the configuration can be simplified and the cost can be reduced.

  The joint mechanism 20 may be provided so that the outer peripheral surface of the shutter portion 25 is pressed against the inner peripheral surface of the plug portion 61 of the plug body 42 without forming the sealing portion 27 a in the shutter portion 25. Even in such a case, the joint mechanism 20 can prevent leakage from the gap between the inner peripheral surface of the plug portion 61 of the plug body 42 and the outer peripheral surface of the shutter portion 25. Further, when the fluid in the fluid container 30 is supplied to the liquid supply device 1, the outer peripheral surface of the shutter portion 25 is pressed against the inner peripheral surface of the plug portion 61 of the plug body 42, and therefore the shutter portion 25 is at the tip. There is no contact with the fluid in the fluid container 30 other than the surface, and the outer peripheral surface of the shutter portion 25 does not contact with the fluid in the fluid container 30. Therefore, the joint mechanism 20 is configured such that even if dust, germs, or the like adhere to the outer peripheral surface of the shutter portion 25, the dust, germs, or the like attached to the outer peripheral surface of the shutter portion 25 may have the intake opening 21 b of the cylindrical body 21. Can be prevented from entering the inside of the liquid supply apparatus 1 and the sanitary state can be maintained.

  Further, the joint mechanism 20 is not limited to being attached to the upper surface of the main body 10, and may be attached to one side surface in the space formed at the lower portion of the main body 10. In this case, since the fluid container 30 can be stored in the space formed in the lower part, the burden of lifting the fluid container 30 can be reduced as compared with the case where the joint mechanism 20 is attached to the upper surface of the main body 10. The fluid container 30 can be easily attached.

  Further, the joint mechanism 20 may be mounted on a sliding plate that is slidably installed by a sliding mechanism in a space formed in the lower part of the main body 10. Also in this case, since the fluid container 30 can be stored in the space formed in the lower part, the burden of lifting the fluid container 30 can be reduced as compared with the case where the joint mechanism 20 is attached to the upper surface of the main body 10. The fluid container 30 can be easily attached. Further, in this case, since the sliding plate to which the joint mechanism 20 is attached and the fluid container 30 is mounted can be easily pulled out from the space by the sliding mechanism, the joint mechanism 20 is simply attached to the lower part of the main body. The fluid container 30 can be attached more easily than what is provided.

  Further, the stopper mechanism 40 of the fluid container 20 is not limited to being configured by the mouth part 41 and the stopper body 42, but a bottomed cylindrical container connector attached to the neck part of the fluid container 30 and the like. An opening member formed in a bottomed cylindrical shape and disposed in the container connector. When the opening mechanism is connected to the joint mechanism 20 and pushed into the container connector by the joint mechanism 20, the bottom portion The bottom of the container connector may be punched, and the inside of the fluid container 30 and the inside of the joint mechanism 20 may be communicated with each other through an opening formed on the side surface.

DESCRIPTION OF SYMBOLS 1 Liquid supply apparatus, 10 main body, 10a front surface, 11 recessed part, 12 protrusion, 13 low part, 14 main body attaching part, 14a main body fitting part, 15 piping member, 15a screw hole, 20 joint mechanism, 21 cylindrical body, 21a passage, 21b intake opening, 22 shutter body, 23 flange part, 24 sliding fitting part, 25 shutter part, 26 biasing part, 27a sealing part, 27b sealing part, 27c sealing part, 28 steps Part, 29 shutter fitting part, 30 fluid container, 31 opening part, 31a peripheral part, 40 plug mechanism, 41 mouth part, 42 plug body, 50 outer diameter part, 51 inner diameter part, 52 communication port, 53 support part, 54 Communication portion, 55 mouth sealing portion, 56 stopper, 57 mouth mounting portion, 57a storage recess, 57b protruding piece, 57c bulging portion, 57d fitting recess, 58 joining piece, 60 sealing portion, 61 plug portion, 2 plug sealing portion 63 protruding, 64 communication holes, 65 slide fitting portion 66 deformed portion 67 stopper mounting portion, the first fitting portion 67a, 67b second fitting portion, 68 protective film

Claims (6)

A joint mechanism of a liquid supply apparatus that can be equipped with a fluid container that stores fluid, and that supplies the fluid from the fluid container to the liquid supply apparatus,
A cylindrical body having an intake opening for taking in the fluid from the fluid container to the liquid supply device;
A shutter body that releasably closes the intake opening,
The shutter body includes a shutter portion that slides on an outer periphery of the cylindrical body to open or close the intake opening, and an urging portion that urges the shutter portion to cover the intake opening. The joint mechanism characterized by having.   The joint mechanism according to claim 1, wherein the shutter portion and the biasing portion are formed in an integral cylindrical shape.   The shutter portion has a cylindrical shape, the urging portion has a cylindrical shape whose diameter is larger than that of the shutter portion, and the shutter portion and the urging portion are integrally formed. Item 3. The joint mechanism according to Item 1 or 2.   When the fluid container is mounted on the joint mechanism, the shutter portion exposes the intake opening by deformation of the biasing portion, and when the fluid container is removed from the joint mechanism, the shutter portion is attached. The joint mechanism according to any one of claims 1 to 3, wherein the urging portion is restored and the cylindrical body is returned to a fixed position by the urging force to cover the intake opening.   The joint mechanism according to any one of claims 1 to 4, wherein the shutter portion has a sealing portion formed on any one of an outer peripheral surface, an inner peripheral surface, and a front end surface. The fluid container has a plug mechanism into which the joint mechanism is inserted,
The plug mechanism has a mouth portion and a plug body attached to the mouth portion,
The mouth portion has an outer diameter portion having a relatively large diameter and an inner diameter portion located inside the outer diameter portion, and the inner diameter portion extends from the outer diameter portion and the position of the inner diameter portion. And having at least one communication portion communicating between the inside and outside of the mouth portion between the outer diameter portion and the inner diameter portion. The joint mechanism according to any one of claims 1 to 5.